Set for tramway-rail channels.



PATENTED MAR.- 24, 1908.

[fl entan- F. 0. SOHNELLER. SET'FOR TRAMWAY RAIL CHANNELS.

APPLIOATIOK FILED JULY 5 1907.

W'z'irz wares.-

UNITED STATJ TENT OFFICE.

FRIEDRICH OTTO SCHNELLER, OF MUNICH, GERMANY.

SET FOR TRAMWAY-RAIL CHANNELS.

Specification of Letters Patent.

Patented March 24, 1908.

Application filed July 5, 1907. Serial No. 382,372.

can be easily opened out again when necessary for repairing or changing the rails. This problem is solved by the present invention.

In the accompanying drawings the device is illustrated.

Figure 1 shows the device itself and Fig. 2 shows the same as applied.

The device consists essentially of the stone body a which may be made of artificial stone such as for instance, cement and is covered over at the top with asphalt b or the like. Besides the hollows c on the bottom intended to lessen the weight, there are also two smaller longitudinal grooves d' intended to take some elastic material such as cork. This stuffing of cork or the like in the longi tudinal grooves serves to form an intermediate layer between the device and the upper surface of the foot of the rail, and causes a good and elastic settling of the stone a, so that any pressure on the stones and vibration of the latter are either not transmitted to the rails or only in a considerablylessened degree.

The advantages of the invention are the possibility of rapid setting, as well as changing, great stability and durability.

I claim:

Sets for tramway rail channels consisting of stone blocks laid one after the other at each side of each rail said blocks being covered on the top with a layer of asphalt and provided on the bottom with longitudinal grooves filled with elastic material, substantially as set forth.

In testimony whereof I have hereunto signed my name this 21st day of June 1907,

in the presence of two subscribing witnesses.

FRIEDRICH OTTO SCHNELLER.

Witnesses ABRAHAM SoHLEssINeER, LOUIS MUELLER. 

